The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2025
Filed:
Feb. 11, 2020
Dracen Pharmaceuticals, Inc., Washington, DC (US);
Pavel Majer, Sykesville, MD (US);
Ivan Šnajdr, Prague, CZ;
Martin Hadzima, Kosice, SK;
Lukáš Tenora, Kretín, CZ;
Jon Philip Lawson, Wildwood, MO (US);
Robert Christian Wild, Murrieta, CA (US);
Yiyang Shao, Beijing, CN;
Jinxiao Chu, Beijing, CN;
Jinchao Weng, Beijing, CN;
Jon Philip Lawson, Wildwood, MO (US);
Robert Christian Wild, Murrieta, CA (US);
Yiyang Shao, Beijing, CN;
Jinchao Weng, Beijing, CN;
Pavel Majer, Sykesville, MD (US);
Ivan Šnajdr, Prague, CZ;
Martin Hadzima, Kosice, SK;
Lukáš Tenora, Kretín, CZ;
Jinxiao Chu, Beijing, CN;
DRACEN PHARMACEUTICALS, INC., Washington, DC (US);
Abstract
The present disclosure provides methods of preparing a compound of Formula (I): wherein R, R, and Rare as defined as set forth in the application. In one embodiment, a compound of Formula (I) is prepared in >95% chemical purity and >95% enantiomeric excess.